Carbureter for gas-engines.



No. 789,749. PATENTED MAY 16, 1905. H. B. MAXWELL.

OARBURETER FOR GAS ENGINES.

' APPLICATION FILED SEPT.4.1903.

WWNESSKS \Nvumm 50%? Nam J wmmu UNITED STATES Patented May 16, 1905.

PATENT OFFICE.

HARRY B. MAXWELL, OF ROME, NEW YORK, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO MAXWELL & FITCH COMPANY, OF ROME,

N EWV YORK.

CARBURETER FOR GAS-ENGINES.

SPECIFICATION forming part of Letters Patent No. 789,749, dated May 16,1905.

Application filed September 4, 1903. Serial No. 171,867.

To all whom it may concern.-

Be it known that I, HARRY B. MAXWELL, of Rome, in the county of Oneidaand State of New York, have invented certain new and useful Improvementsin (Jarbureters for Gas-Engines; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the numerals of reference marked thereon, which form part of thisspecification.

The object of my invention is to provide an improved carbureter for usewith gas-engines by means of which the mixture can be satisfactorilyregulated and which is simple in construction and easily operated andadjusted for different positions of use.

In the drawings, Figure 1 shows a vertical section of my carbureter,including the float feed-regulator. Fig. 2 shows a section taken on lineA B of Fig. 1, showing the parts to the left of said section-line.

Referring to the reference-figures in a more particular description, 1indicates the float feed tank or chamber which receives the float 2,having spindles 3 4 engaging in bearings in the end of the tank, servingto direct the movement of the float and maintain it in position. Thespindle 4 also includes a valve 5, which in cooperation with the seat isadapted to regulate the inflow of gasolene or other carbureting fluidthrough the passage 6. From the receptacle 1 there is a passage 7, inwhich is provided a valve-seat 8. this passage is regulated by the valve9, mounted upon the adjusting-screw 10. After passing the valve 9 thepassage extends through and out of the end of the nozzle 11. Between thevalve-seat8 and the nozzle 11 the passage 7 is provided with anintake-opening 12. The nozzle 11 occupies a substantially centralposition in the casing 13, which casing is quite similar to the body ofan ordinary gas-cock. This casing 13 has a face to fit and is secured ona face-plate 1 1, surrounding the nozzle 11, by screws 15 15. Thesescrews pass through circular slots 16 16, and the angle of the cas- Theflow through ing 13 with reference to the float feed mechanism may beadjusted by tightening the'screws 15 at any desired points in the slots16.

The casing 13 has an inlet-opening at one end and an outlet-opening atthe other, and as the construction is shown it is immaterial which iswhich. In a circular enlargement 13 of the casing 13 Iprovide a rotarycut-off device 17, which includes particularly the two gates 17 and 17For operating the cut-off device 17 there is provided a handle 18,secured to the stem 17 thereof, and the cut-off device is held inposition in the casing and the casing closed by the removable cap orplate 19.

The arrangement of the float 2 is such that it will shut off the supplyof gasolene or carbureting fluid to the inlet 6 at or before the timethe level in the chamber 1 has attained the point indicated by thehorizontal dotted line in Fig. 1.

When air or the gas to be carbureted is passing through thecasing 13across the end of the nozzle 11, the suction induced causes the gasoleneor carbureting fluid to move from the receptacle 1 through the passage 7and out of the nozzle 11. The amount of the flow can be regulated by thevalve 9. At the same time a small amount of air is taken through thepassage 12 and also mingling with the gasolene passes out of thedelivery end of the nozzle 11. Under full operation the gates 17 and 17b will be preferably in full opened position, as indicated in Figs. 1and 2. By turning the cut-off device 17 by means of the handle theintake of air and the delivery of the carbureted air are simultaneouslyregulated or shut off. By regulating this cut-off device the quantity ofthe mixture can be nicely regulated to answer for a faster or slowerspeed for the engine.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination in a carbureter device of the face-plate 14, havingthe nozzle 11 projecting centrally therefrom, and the casing 13 havingan opening for receiving the nozzle, and means for adjustably securingthe casing on the face-plate, substantially as set forth.

2. In a carbureter, a combination of a casing, having inlet and outletopenings, a rota- In Witness whereof I have afiixed my signatablecut-off device in said casing, having ture, in presence of tWoWitnesses, this 31st gates 17 and 17, a handle attached to one day ofAugust, 1903.

side of said rotatable cut-off device, and the HARRY B. MAXWELL. 5earbureting-nozzle projecting axially into said Witnesses:

rotatable cut-ofl' device, substantially as set OSWALD P. BACKUS,

forth. N ELLIE L. BUCK.

